Anyone know what the thread is on the pump output for the Champion rv15a pump? I'm trying to install the Hayden 1290 aftercooler, but I can't seem to find the correct thread for a 3/4" adapter.
The existing line was a 3/4" OD copper line with compression fittings (are 3/4" compression fittings a thing? I know 7/8" and 5/8" are for 3/4" and 1/2" copper respectively) at both ends. It's a much finer thread than 3/4" npt which is pretty evident when holding each side by side.
I found a thread of someone rebuilding an older champion head, that had 1"-18 pump discharge threads, which is an extremely uncommon size, so I'm assuming this must be as well.
The existing line was a 3/4" OD copper line with compression fittings (are 3/4" compression fittings a thing? I know 7/8" and 5/8" are for 3/4" and 1/2" copper respectively) at both ends. It's a much finer thread than 3/4" npt which is pretty evident when holding each side by side.
I found a thread of someone rebuilding an older champion head, that had 1"-18 pump discharge threads, which is an extremely uncommon size, so I'm assuming this must be as well.
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